. >> as the violence level increases in mexico, that is having a trickle-down impact on the united states. >> it is not just drugs anymore. >> these predators have figured out that it is often a high reward, low risk, that they can traffic human beings and make a lot of money, without fear of getting caught like it would if they were walking around with an ak-47 or methamphetamine. >> why would someone traffic a five year-old child? >> as a career prosecutor, i cannot tell you, we have some predators out there, he would convince the parent that until their payback, the child belongs to them. >> one of the more disturbing revelations is that a year using prison gangs as go- betweens. >> how does someone doing life in prison, in a maximum prison in the state of california, how to be a shock collar for gangs? >> we know that the gang members that are in the prisons have been caught in possession of cell phones, they used to call street gangs. >> the response from the warden at pelican bay said that gangs are in fact involved with the prison population, you concede that. but since 2010 have n